题目：Peer-Assisted Video Streaming: The Good, The Bad and The Ugly
报告人：潘建平
地点：东五楼二楼210
时间：11月1日上午9:30

报告摘要:
　　High-quality content distribution, nowadays often in video format, is one of the main applications of the Internet and everyone's daily life. Peer-assisted video streaming has attracted a lot of attention in the academia and industry due to its superior promise of scalability, i.e., by leveraging the computing, communication and storage resources from participating peers to relieve the server and network from overload. However, although there are many successful peer-assisted content distribution systems around, how to explore their full potential and deliver their full promise is still a challenging problem. In particular, service providers and network operators have to deal with the huge diversity in terms of access links, video sources and user dynamics. In this talk, we will briefly introduce the peer-assisted video streaming systems, and focus on the issues with network address translation, high-definition videos and flash-crowd behaviors. Through modeling, analysis and performance evaluation, we show that with a little bit coordination among service providers, network operators and end users, it is possible to have a better performance for everyone. We conclude by discussing some further challenges in peer-assisted content distribution systems.

报告人简介:
　　Dr Jianping Pan is currently an associate professor of computer science at the University of Victoria, Victoria, British Columbia, Canada. He received his Bachelor's and PhD degrees in computer science from Southeast University, Nanjing, Jiangsu, China, and he did his postdoctoral research at the University of Waterloo, Waterloo, Ontario, Canada. He also worked at Fujitsu Labs and NTT Labs. His area of specialization is computer networks and distributed systems, and his current research interests include protocols for advanced networking, performance analysis
of networked systems, and applied network security. He received the IEICE Best Paper Award in 2009, the Telecommunications Advancement Foundation's Telesys Award in 2010, the WCSP 2011 Best Paper Award and the IEEE Globecom 2011 Best Paper Award, and has been serving on the technical program committees of major computer communications and networking conferences including IEEE INFOCOM, ICC, Globecom, WCNC and CCNC. He is a senior member of the ACM and a senior member of the IEEE.